Aboy kicks a ball with a force of 40 n. at exactly the same moment, a gust of wind blows in the opposite direction of the kick with a force of 40 n. what happened to the ball? a. it began to move with a speed of 80 m/s. b. it did not move. c. it moved in the direction that the wind was blowing. d. it moved in the direction of the kick.

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green